Product Details

The XYCOM 70630-025 XVME630 is a discontinued 6U dual-height VMEbus master processor module built around Motorola 68EC030 CPU, available at 25MHz or 40MHz clock speed, designed for legacy XYCOM VME racks and distributed DCS process automation systems. It carries a socket for optional 68882 floating-point coprocessor to boost floating-point calculation performance for complex control algorithms and data computation. This board provides multiple memory banks which can be configured for high-speed SRAM, EPROM or flash storage, supporting up to 1MB SRAM, 2MB EPROM or 3MB flash to hold control firmware, real-time application programs and lookup tables. It integrates DUSCC controller to offer two synchronous or asynchronous serial communication channels, supporting RS232 or RS485 connection for HMI consoles, debug terminals and serial field devices. A battery-backed real-time clock with 32 bytes non-volatile RAM is onboard to preserve system time and critical configuration parameters during power loss. It complies with standard VMEbus specification, supports A16/A24/A32 address space, seven-level VME interrupt daisy chain and programmable bus arbitration, acting as bus master to manage all slave I/O modules including analog input, analog output and digital I/O cards on the backplane. Users can set base address, interrupt priority, boot mode and memory bank assignment via on-board DIP switches and jumpers to avoid system resource conflicts. The front panel is equipped with LED indicators for power, CPU activity, bus error and fault status, together with reset and abort switches, allowing maintenance technicians to quickly diagnose boot failure, bus timeout and program exceptions during commissioning and routine maintenance. The PCB adopts industrial-grade components and complete EMC filtering circuit to suppress electromagnetic noise and withstand mechanical vibration, supporting stable long-time running in chemical, power and oil & gas industrial sites. This legacy processor module is mainly supplied as spare replacement parts for existing VME automation systems. Users need to confirm firmware version, memory configuration and backplane compatibility before installation. A conformal coated version is optional for high humidity and dusty working environments. This model is widely used in chemical process control racks, power plant auxiliary DCS systems, motion control platforms and old VME-based automation retrofit projects.

This VME processor board adopts standard 6U dual-slot VME board structure. It draws 5VDC power supply from VME backplane. LED indicators display power status, CPU heartbeat, bus error and fault alarm for convenient on-site inspection. The operating temperature range is 0°C to 50°C, storage temperature ranges from -40°C to 85°C, relative humidity 5% to 95% non-condensing. It complies with industrial shock, vibration and EMC standards and has CE certifications. It supports boot parameter, interrupt and memory configuration backup for fast recovery after hardware replacement.

This XYCOM 70630-025 XVME630 processor module is widely applied in legacy VME control racks and DCS system upgrade projects. It serves as the master controller to execute real-time control logic, collect field signals and coordinate all VME I/O modules. As a reliable discontinued VME CPU spare part, the XYCOM 70630-025 XVME630 retains original bus timing and firmware compatibility, and effectively reduces the renovation cost of legacy industrial control system maintenance.